Patent US2984960A successfully refreshed from Google Patents.
US2984960A
Expired / Lapsed
US
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Lifting and counterbalancing means for a tractor mower
Assignee: Massey Ferguson Inc
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Filing: 1958-03-17
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Granted: 1961-05-23
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Expires: 1978-03-17
Abstract
No abstract record available.
Inventors
- 👤 William A Wathen
- 👤 Merle H Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:19
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/02; A01D34/03; A01D34/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2686999A
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US2767539A
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US2787879A
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US2826029A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |